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Silver 3.5 inch bare hard drive with green circuit board visible

HGST

HGST HDS721680PLA3800 Deskstar 7K160 80GB 7200 RPM 8MB SATA 3.0Gb/s 3.5" internal hard drive

SKU CH-636A-5NJVX MPN HDS721680PLA3800

80 GB 3.5" SATA desktop drive spinning at 7200 RPM with 8 MB cache and 8.5 ms seek time

  • PackagingBare Drive
  • InterfaceSATA 3.0Gb/s
  • Capacity80GB
  • RPM7200 RPM
  • Cache8MB
  • Average Seek Time8.5ms
  • Faster data throughput with 7200 RPM spindle speed
  • Reduced access latency from 8.5 ms average seek time
  • Smoother multitasking via 8 MB cache buffer
  • Reliable operation through thermal monitoring and fly height control
  • Broad desktop compatibility with 3.5 inch SATA 3.0 Gb/s interface

HGST Deskstar 7K160 80 GB SATA drive

The HGST Deskstar 7K160 is a 3.5-inch desktop internal hard drive with 80 GB capacity. It spins at 7200 RPM and provides an 8 MB cache on a SATA 3.0 Gb/s interface. The bare drive uses Native Command Queuing for data throughput.

Suits legacy desktop repair and low-capacity storage

This drive fits older desktop systems that require a SATA 3.0 Gb/s mechanical drive for boot or secondary storage. It is not for buyers who need more capacity than 80 GB, nor for builds that demand solid-state speeds or modern high-density platters.

SATA 3.0 Gb/s interface decides compatibility

The single specification that decides fit is the SATA 3.0 Gb/s interface. Your motherboard or controller must provide a matching SATA port; systems that only support newer or different interfaces cannot use this drive.

Highlights

  • Faster data throughput with 7200 RPM spindle speed
  • Reduced access latency from 8.5 ms average seek time
  • Smoother multitasking via 8 MB cache buffer
  • Reliable operation through thermal monitoring and fly height control
  • Broad desktop compatibility with 3.5 inch SATA 3.0 Gb/s interface

Specifications

BrandHitachi GST
SeriesDeskstar 7K160
ModelHDS721680PLA380 (0Y30005)
PackagingBare Drive
InterfaceSATA 3.0Gb/s
Capacity80GB
RPM7200 RPM
Cache8MB
Average Seek Time8.5ms
FeaturesNative Command Queuing for maximum data speeds
Thermal Monitoring and Fly Height Control for high reliability
SMART Command Transport optimized response times
Form Factor3.5"
Shipping weight0.68 kg
Package size203 × 152 × 51 mm

Questions about this item

How does the 7200 RPM spindle speed affect everyday use?

The 7200 RPM rotation keeps data moving quickly, so operating system boots and application launches feel responsive on a desktop system.

What does the SATA 3.0Gb/s interface limit in practice?

The SATA 3.0Gb/s link caps maximum throughput at roughly 300 MB/s, so sustained reads and writes will not exceed that ceiling.

Will this 3.5 inch drive fit a standard desktop bay?

Yes, the 3.5 inch form factor matches the regular desktop drive bay and uses standard SATA power and data connectors.

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